This for those who have absolutely no custom firmware at hand. This isa tutorial, but Pandora section is incomplete without this. Thisrequires you to have a real steady arm and willingness to accept thatthings may go wrong. REMEMBER THAT Li-ION BATTERIES ARE VERY EXPLOSIVE IF NOT HANDLED CAREFULLY. You may also render the battery useless.

NOTE: These methods apparently do not work or newer batteries, so get yourself some older batteries.================================================== ===============

Making Switchable PSP-Slim Pandora battery {RECOMMENDED}

Following this, you will have a working and switchable Pandora-Batteryfor your slim PSP.Just use your switch now to choose the function of it!

modified from original comments

Originally Posted by JayL

Step one:Open your slim battery. I have used a guitar pick to do it.Just slide the pick or whatever you use along the join between the upperand lower half of the battery while breaking it open carefully.

Step two:You will see a small PCB.Gently bend it back like in the picture below.Be careful with that, as the battery is connected with the boardby two thin foils.

Step three:Now you have to solder thin wires to the two small contactsi have marked in the picture with red rectangles.My wires are from a 80-conductor IDE cable. I don't think thatyou can take much thicker wires because space is very rare.Don't leave your soldering iron on the contacts too long,as this will destroy the parts. At this step you also have tosolder a very thin on/off switch to the other end of thewires (blue rectangle). I got mine from a broken usb memory stick, at which it.

Step four:

You have to cut away some plastic from the lower side ofthe battery to route the wires and to make a hole for the swich.I marked the spots where i cut it away redin the blue box.

Step five:

Now gently bend the PCB back to it's normal place androute the cables and the switch to their final location.

Step six:

Now fix the switch to stay in it's place with some superglue or duct tape.I would recommend duct tape first, to correct something, if you didsomething wrong. The switch mustn't overhang, cause elsethe battery will not fit in your psp anymore.

Step seven and eight:

Also cut away some plastic at the upper half of the batteryat the same position where you cut it away on the lower half, sothat you can reach the switch inside. You can see in the pichow much you have to cut away approximately.

After that put the halves back together again and fix them withsome superglue or duct tape.

This guide and tute has beenwritten based on a PSP Slim PSP-s110 battery. For phat psp users, thisis the connection that must be made.

FULL GUIDE AND IMAGES AT RELEASE THREAD

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A Poor Man's BatteryThe following ďpoor manísĒ hardware guide to creating a Pandora Batteryis aimed towards the non-handy man type. With that said you maypotentially render your battery completely useless or cause anotherunforeseen disaster. Proceed with caution: (Thanks to James L for theguide.)

Unfortunately, I didnít have the essential tools, and the solderingiron didnít seem to want to work (possibly because it had solder onit). So I found a small way around using the ďessential toolsĒ. All youneed is something thatís small enough to fit under the pin, a cuttingutensil, and optionally, tape. Non-conductive tape, so NO DUCT TAPE!

Just pry open the battery by pinching the edges (with your teeth or something to that effect).

Once inside, this is optional, but I recommend it. Cut one of thebatteries terminals, preferably, the one with a solid connection cable.One is solid, one is a flexible metal. Cutting the flexible one isfine, but it cause the battery to short, a problem Iím currentlyfacing, every once in awhile, causing restarts. Iím guessing itísbecause of the flexible material moving around inside the battery whenthe PSP is moved. Make sure to bend the metal GENTLY so that theycannot touch while you proceed.

Then, using your pry tool, make sure to get it just under theright pin, as seen in the diagrams. Preferably, get something that canwedge diagonally in the pin, then twist it.

Tape the battery terminal back together if you cut it, once youíve safely removed the pin.

Put the battery back together. Donít worry, it wonít snaptogether, thus, more tape! Wrap tape, and yes, you CAN you duct tapehere, around the battery to hold it together. Scotch tape isrecommended, because itís not bulky, so it doesnít prevent the batteryfrom going in smoothly.

And thatís all there is to it. I was going to attempt to make aswitchable service battery (even though this is possible VIA software,but it would have been cool to have), but the pin broke COMPLETELY off.Oh well.